Hangouts for iPhone and iPad is Google's new cross-platform messaging app that lets you converse with your friends regardless of what phone, tablet, or computer they are using. It features a beautiful, clean design and support for video messaging.
The chat view in Hangouts is very traditional and flat with some subtle shading. Your messages and picture are on the right and everyone else is on the left. All users' chat bubbles are the same color, so only the picture distinguishes users from each other; something I actually like. It's simple
Tapping a user's photo will take you to their profile which includes everything they've made available on Google+, including work history, basic information, education, and more.
Video chatting with Hangouts is super easy, looks great, and also sounds crisp and clear. I had a quick conversation with Rene while he was in a noisy environment, yet I had no problem hearing or understanding him.
Google Hangouts also gives you control over who gets to hangout with you and who must send a request. You can also choose to automatically snooze notifications after 1-72 hours and block specific users.
If you chat with friends on Google Talk or Google+ often, then Hangouts is awesome and you should definitely pick it up.